public ItemContactState(ItemCollision itemCollision, Collision collision, Contact contact, Int32 timesReacted)
{
Interactive = itemCollision.Interactive;
TimesReacted = timesReacted;
Collision = collision;
Contact = contact;
Point = contact.PointB;
Radius = Point - Interactive.Position;
Normal = contact.NormalAB;
Velocity = Interactive.GetVelocityAt(Radius);
Approach = -Vector3.Dot(Normal, Velocity);
Momentum = Interactive.GetForceAt(Radius);
Weight = -Vector3.Dot(Normal, Momentum);
Orthonormal = Normal.Orthonormal(Velocity);
}
public Single ComputeApproachVelocity()
{
return(-Vector3.Dot(Normal, Interactive.GetVelocityAt(Radius)));
}